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3 years ago

What is 5.63×10^-6 in decimal form?

Mathematics

2 answers:

sdas [7]3 years ago

3 0

0.00000563 the correct one

Kisachek [45]3 years ago

3 0

A. 0.00000563. Msg if u need more help :)

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What is the probability of spinning an A?

zzz [600]

Answer:

25%

Step-by-step explanation:

There are 8 slices in the spinny thingy.

There are 2 A's

$\frac{1}{4}$ = 25%

5 0

3 years ago

Cars arrive at the Wendy's drive-through at a rate of 1 car every 5 minutes between the hours of 11:00 PM and 1:00 AM. on Saturd

mestny [16]

Answer:

1) $P(X = 8) = 0.1033$

$P(X = 9) = 0.0688$

2) Expected number of 200 restaurants in which exactly 8 customers use the drive-through: 20.66

Expected number of 200 restaurants in which exactly 9 customers use the drive-through: 13.76

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

$e = 2.71828$ is the Euler number

$\mu$ is the mean in the given time interval.

Question 1. Use the Poisson distribution to calculate the probability that exactly 8 cars will use the drive-through between 12:00 midnight and 12:30 AM on a Saturday night at Wendy's. Do the same for exactly 9 cars.

Cars arrive at the Wendy's drive-through at a rate of 1 car every 5 minutes between the hours of 11:00 PM and 1:00 AM. on Saturday nights. This means that during 30 minutes, 6 cars expected to arrive. So $\mu = 6$ .

P(X = 8)

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 8) = \frac{e^{-6}*(6)^{8}}{(8)!} = 0.1033$

P(X = 9)

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 9) = \frac{e^{-6}*(6)^{9}}{(9)!} = 0.0688$

Question 2. At how many of the 200 restaurants in the survey would you expect exactly 8 customers to use the drive-through? exactly 9 customers?

There is a 10.33 probability that 8 customers would use the drive through for each restaurant.

So of 200, the expected number is

$E(X) = 200*0.1033 = 20.66$

There is a 6.88 probability that 9 customers would use the drive through for each restaurant.

So of 200, the expected number is

$E(X) = 200*0.0688 = 13.76$

8 0

3 years ago

Mean Mode Median<br><br>12, 10 ,10, 13, 18, 9

Fiesta28 [93]

Mean: To find the mean you add all the numbers up and divide by the total number of factors.

12+10+10+13+18+9 = 72

72/6 = 12

Mode: To find the mode, we need to find the number that reoccurs the most in the sequence.

In this case it is 10 because it occurs twice, while the other factors occur once!

Median: To find median we need to arrange the numbers in numerical order. We then cross off one from each side until we come to the middle interger. If it comes between two numbers, you use the half way point between those two numbers.

9 10 10 12 13 18

In this case, we get left with 10 and 12. Meaning that our median is 11!

8 0

3 years ago

Which equation should be used to find the volume of the figure?

dexar [7]

Answer:

O V=3(10XB)(12)

Step-by-step explanation:

8 0

2 years ago

-0.6 into a fraction

Akimi4 [234]

The fraction would be - 3/5

5 0

2 years ago